• Article  

      Monitoring disruptions in financial markets 

      Andreou, Elena; Ghysels, Eric (2006)
      We study historical and sequential CUSUM change-point tests for strongly dependent nonlinear processes. These tests are used to monitor the conditional variance of asset returns and to provide real-time information regarding ...
    • Article  

      Robust multiobjective portfolio optimization: A minimax regret approach 

      Xidonas, Panos; Mavrotas, George; Hassapis, Christis; Zopounidis, Constantin (2017)
      An efficient frontier in the typical portfolio selection problem provides an illustrative way to express the tradeoffs between return and risk. Following the basic ideas of modern portfolio theory as introduced by Markowitz, ...